An inhaler includes an atomizing unit including a piezoelectric element substrate having a first IDT including a pair of interlocking comb-shaped electrodes. The atomizing unit is configured to atomize liquid by a surface acoustic wave generated by applying a high-frequency voltage to the pair of interlocking comb-shaped electrodes, and a controller is configured to monitor a resonant frequency of the pair of interlocking comb-shaped electrodes and apply a voltage to the pair of interlocking comb-shaped electrodes at a frequency determined based on the monitored resonant frequency.

A compact apparatus for atomisation of fluid samples comprises a sonotrode (11), placed so that an ultrasonic wave emitted by the sonotrode is directed through a channel (25) in a separate channel device (21) and reflected by from the interface (26) in a high-low impedance transition zone (Tz), so that a standing wave is formed within the channel. A positive air flow through the channel, driven by a pressure differential at each end of the channel, interacts with the working fluid or slurry being delivered by a fluid delivery device (30) to atomise it. The speed of the air flow and the dispersal, homogeneity, and size of particles in the slurry sample can be controlled by varying the shape of the channel outlet.

Systems for producing an aerosol and related methods of use are described.

An aerosol delivery device is provided that includes at least one housing, a nozzle, a piezoelectric or piezomagnetic material, a control component, and a transport element. The at least one housing may enclose a reservoir configured to retain an aerosol precursor composition. The nozzle may be coupled to the housing to discharge aerosol precursor composition from the reservoir. The control component may include a microprocessor coupled to and configured to drive the piezoelectric or piezomagnetic material to vibrate and cause a discharge of components of the aerosol precursor composition and thereby produce an aerosol for inhalation by a user. And the transport element may be configured to control an amount of aerosol precursor composition delivered from the reservoir.

The present invention discloses a flame simulating device, comprising a mist generating chamber, an atomizing head, an air orifice and a nozzle. The inside of the mist generating chamber is provided with a liquid and the atomizing head, the atomizing head being capable of atomizing the liquid inside the mist generating chamber, the two sides of the nozzle being set as Coanda curved surfaces, the cross section of the air orifice being in a constricted shape and providing an air flow blown upward such that under the Venturi effect, the air flow blown upward will guide and attract the mist from inside the mist generating chamber to vent out and flow into a nozzle inlet. Due to the Coanda curved surface on the side of the nozzle, the mist flows along both sides of the nozzle under the Coanda effect and then vents out of the nozzle.

A spray coating module with multi-orifice passageways includes an ultrasonic vibrating unit having an ultrasonic horn, and a material feeding unit having a material inputting passageway, a plurality of material outputting passageways, a dividing passageway and a material outputting end surface. The dividing passageway communicates with the material inputting passageway and each material outputting passageway. The material inputting passageway has a material inputting orifice. Each material outputting passageway has a material outputting orifice formed on the material outputting end surface. The cross-sectional area of the material inputting orifice is larger than the sum of the cross-sectional areas of the material outputting orifices. A gap is kept between the material outputting end surface and the ultrasonic horn. As a result, the present invention is effectively prevented from the non-uniform material feeding condition of the traditional elongated material feeding unit and relatively better in spray coating uniformity.

The present disclosure provides an aerosol delivery device that may comprise a housing defining an outer wall. The device may further include a power source and a control component, a mouthpiece portion, a tank portion that includes a reservoir configured to contain a liquid composition, and an atomization assembly configured to vaporize the liquid composition to generate an aerosol. The atomization assembly may comprise a vibrating assembly that includes a mesh plate. In some implementations, the reservoir of the aerosol delivery device may be configured to rotate relative to the position of the aerosol delivery device. In some implementations, the aerosol delivery device may further comprise a perforated gate. In some implementations, the aerosol delivery device may further comprise a liquid transport element. In some implementations, the aerosol deliver device may further comprise a micropump assembly. In some implementations, the reservoir of the aerosol delivery device may be U-shaped.

The present invention includes and provides a method of delivering a medicament to an eye of a subject in need thereof a solution, the method comprising: (a) providing droplets containing the medicament with a specified average size and average initial ejecting velocity; and (b) delivering the medicament to the eye, where the droplets deliver a percentage of the ejected mass of the droplets to the eye.

A sprayer includes: a container arranged to contain liquid; a passage including a transparent window, a first opening, a second opening and a resonator, wherein when the liquid in the container is passed through the resonator via the first opening, the liquid is emitted as a gas via the second opening; and a detection unit disposed outside of the passage. The detection unit includes: a light source disposed to emit light through the light transparent window for illuminating the gas in the passage such that the gas will reflect the emitted light; an optical sensor disposed to detect a parameter of the reflected light through the transparent window; and a processor coupled to the optical sensor for stopping the resonator from generating the gas when the parameter of the reflected light is below a first threshold corresponding to a specific level of liquid within the container.

An apparatus for atomising liquid, including a piezoelectric substrate (1) having a working surface (3), and a peripheral edge (7) extending along a side of the working surface, an interdigital transducer (2) located on the working surface for generating surface acoustic waves (SAW) in the working surface, and a liquid delivery arrangement including a porous member (8) for supplying the liquid to be atomised, wherein the porous member is in contact with the peripheral edge of the piezoelectric substrate.